JPS62201615A - Device for purifying bath water - Google Patents

Abstract

PURPOSE:To obtain the titled miniaturized and inexpensive device capable of automatically detecting the clogging condition of a filter and annunciating the condition to the outside by using a pressure switch which is actuated by the clogging of the filter and provided with an annunciator for annunciating the actuated state. CONSTITUTION:A circulating pump 3, a filter 4, and a pressure switch 5 which is actuated by the negative pressure generated by the circulating pump 3 when the filter 4 is clogged and provided with the annunciator 7 used for annunciating the actuated state to the outside of the main body and consisting of a lamp, a buzzer, etc., are provided to a circulator 2 for forcibly circulating the hot water in a bathtub 1. The actuation of the pressure switch 5 is detected by a controller 6, and an annunciating signal is outputted to the annunciator 7.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to the structure of a bath water purifying device for a domestic bath or the like.

2. Description of the Related Art In general, there have been proposed devices for household bathtubs that can purify the scales in the bathtub. If the filter built into the main body becomes clogged with scale, it will need to be cleaned periodically. In this case, the user must take action to check periodically.

In addition, the scale is collected by circulating in one direction along with the bath water, and if the filter becomes clogged as a result, the flow is reversed by operation in the opposite direction to the one-way circulation, and at that time, the scale is discharged along with the drainage water. There is technology to automatically clean the area, but it requires extremely large equipment.

Problems to be Solved by the Invention However, with the above configuration, even if the filter is clogged, if the user forgets to check this, the function may be impaired. Also, if conditions such as the number of times the filter is used change, excessive clogging of the filter may not be discovered through periodic checks. Furthermore, the automatic cleaning device described above has the problem that it is a large and expensive device and cannot be widely used for household use.

In view of the above problems, the present invention automatically detects the clogged state of the filter and notifies the outside.

Means for Solving the Problems In order to solve the above problems, the bath water purification device of the present invention is provided with a circulation pump, a filter, and a pressure switch in a reciprocating circulation path for forcibly circulating hot water in a bathtub. The pressure switch is operated by the negative pressure generated by the circulation pump when the filter is blocked, and is equipped with a notification device that notifies the operating state to the outside of the main body.

Operation According to the above-described structure of the present invention, when the filter is blocked and becomes clogged beyond a certain level, the flow path resistance increases and the negative pressure generated by the circulation pump changes. The pressure setting of the pressure switch can be set to the negative pressure when the pressure is clogged to a certain level as described above, and when the pressure switch is activated, a buzzer or lamp can be used to notify the outside of the main body.

EXAMPLE Hereinafter, a bath water purifying device according to an example of the present invention will be described with reference to the drawings. FIGS. 1 and 2 are block diagrams of a bath water purification apparatus according to an embodiment of the present invention. 1st
In the figure, a reciprocating circulation path 2 is connected to a bathtub 1.

In the reciprocating circulation path 2, from upstream in the direction of circulation of bathtub water,
A filter 4, a pressure switch 6, a circulation pump 3, and a heat exchanger 2a are provided in this order.

A controller 6 detects the operation of the pressure switch 5 and outputs a notification signal to the notification device T. The notification device 7 has a notification function such as a lamp or a buzzer. 8 is the main body of the bath water heater. In FIG. 2, reference numeral 9 indicates scale, and the filter 4 is clogged with dust, scale, hair, etc. sucked from inside the bathtub 1.

The operation of the bath water purification device configured as above will be described below with reference to the drawings. FIG. 1 shows a state in which the filter 4 is not clogged. To purify the bathtub water, the circulation pump 3 is operated to circulate the bathtub water in the direction of the arrow, and the filter 4 is free from hair.
Collect dirt etc.9.

FIG. 2 shows a state in which the filter 4 is clogged with scale 9 and the like. In this way, when a certain amount of scale is clogged, the reciprocating circulation path 2
Although the flow path resistance changes, the voltage applied to the circulation pump 3 does not change, so the negative pressure generated by the circulation pump 3 changes. At this time, if the set pressure of the pressure switch 5 is set to the pressure when the bathroom is clogged above a certain level, the blockage can be detected.The controller 6 detects this operation and the The notification can be made by lighting the lamp 7. The notification may be made on the surface of the bath water heater main body 1, and in this case, the notification may be made by a sound such as a buzzer.

Effects of the Invention As described above, the bath water purification device of the present invention is provided with a circulation pump, a filter, and a pressure switch in a reciprocating circulation path for forcibly circulating hot water in a bathtub, and the pressure switch is configured to prevent the circulation by blocking the filter. This device is equipped with a notification device that is activated by changes in the negative pressure of the pump and notifies the operating state outside the main body, and has the following effects.

■If the filter becomes clogged with scale, etc. beyond a certain level, it can be accurately notified to the outside, and the cleaning of the filter can be encouraged at an appropriate time, thereby indirectly maintaining the purification function. .

(2) The filter itself can be small, so the overall size can be made extremely small, and at the same time, it can be manufactured as an inexpensive device, so it can be widely used for household use.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a bath water purifying apparatus according to an embodiment of the present invention, and shows a state in which the filter is not clogged. FIG. 2 is a diagram showing a state in which the filter is clogged. 1... Bathtub, 2... Reciprocating circulation path, 3.
...Circulation pump, 4...Filter, 6...
...Pressure switch, 7...Notification device.

Claims (1)

[Claims] A circulation pump is installed in the reciprocating circulation path that forcibly circulates hot water in the bathtub.
1. A bath water purification device comprising a filter and a pressure switch, the pressure switch being operated by a change in negative pressure generated in the circulation pump due to blockage of the filter, and a notification device for notifying the operating state.